In DiD S2, an enemy unit was adjacent to a village. I ordered a unit of mine to move into the village and attack. The unit moved into the village, which spawned some lvl0 Goblins, and attacked. I expected the game to pause once the Goblins spawned to let me choose how to continue: which enemy unit to attack (the original target, the newly spawned Goblins, or neither in order to conserve HP).

This happened during normal play, I can reproduce it in debug mode:

1. ./wesnoth --campaign=Descent_into_Darkness --campaign-scenario=02_Peaceful_Valley --campaign-difficulty=1 --debug
2. Create an enemy unit at (15,10) (adjacent to the village)
3. Order Darken Volk to move into the village and attack the unit
4. Darken Volk moves into the village, goblins spawn, but no opportunity to change the orders is given, the originally commanded attack proceeds